March-April 2017Volume 105, Number 2
Drawing inspiration from forms found in nature, artist Rogan Brown uses a scalpel or laser to cut intricate patterns into hundreds of microlayers of paper. (The cover features a detail from his paper sculpture Kernel.) As new technologies increasingly dominate the popular culture....
Even in places where nature is perceptibly altered by human actions, the number of species does not necessarily decline.
Philip A. Rea, Anderson Y. Tien
This ubiquitous diabetes drug took a convoluted route to become the standard of care, and is still finding new uses.
Timothy J. Jorgensen
The story of radon’s study in public health can be a guide for how to best weigh the pros and cons of radiation use.
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Katie L. Burke
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FROM THE EDITORS
Curiosity Expands our Worldview
Jamie L. Vernon
Art and Science in the Romantic Imagination
Creativity assumes a variety of natural, yet imaginary, forms in these painstakingly carved paper sculptures.
Bottle and Can Openers as Levers*
A simple machine can take on myriad forms to get the job done, but all the variations still operate on the same mechanical principles.
How to Detect Faked PhotosScience
Techniques that analyze the consistency of elements within an image can help to determine whether it is real or manipulated.
Lighting Up the Animal Kingdom
LETTER TO THE EDITORS
An Autonomous Trip
Confidence in Science
Nuclear Power Debate
A New Window on Alien Atmospheres
The James Webb Space Telescope, originally intended for scanning the outer reaches of the cosmos, is now expected to break new ground exploring exoplanets.
Too small to be seen by the human eye, nanoparticles are already transforming many scientific fields, from electrical engineering to materials science. Now scientists are working to optimize production.
Pressure in the Pink
A pressure-sensitive paint is helping NASA accurately model the extreme forces that spacecraft experience during launch.
First Person: George Weiblen
Q&A with one of the first plant biologists registered to study Cannibus.
SIGMA XI TODAY (PDF)
News Flash: Science Has Always Been Political
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